Hübnerite: Properties and Occurrences
Hübnerite or hubnerite is a mineral consisting of manganese tungsten oxide (chemical formula: MnWO4, it isn’t a tungstate). It is the Manganese rich end member…
Geographic Minerals
Hubeite: Properties and Occurrences
The mineral hubeite, Ca2Mn2+Fe3+[Si4O12(OH)]·(H2O)2, is a sorosilicate of the Si4O13 group. It is a triclinic-pinacoidal mineral containing aluminum, calcium, hydrogen, iron, manganese, oxygen, and silicon.…
Hsianghualite
Hsianghualite is a tectosilicate (framework silicate) of lithium, calcium, and beryllium, with fluorine, a member of the zeolite group. It is an isometric-tetartoidal white mineral…
Howlite: Properties and Occurrence
Howlite, a calcium borosilicate hydroxide [Ca2B5SiO9(OH)5], is a borate mineral found in evaporite deposits. It is a mineral consisting of a white nodular or earthy…
Hornblende: Properties and Occurrences
Hornblende is a complex inosilicate series of minerals (ferrohornblende – magnesiohornblende). The general formula can be given as (Ca, Na)2-3(Mg, Fe, Al)5(Al, Si)8O22(OH, F)2. It…
Hopeite
Hopeite is a hydrated zinc phosphate with the formula: Zn3(PO4)2·4H2O. It is an orthorhombic-dipyramidal mineral containing hydrogen, oxygen, phosphorus, and zinc. It is a rare…
Homilite: Properties and Occurrences
Homilite is a borosilicate mineral belonging to the gadolinite group of minerals with formula Ca2(Fe, Mg)B2Si2O10. It is a mineral consisting of a black or…
Holmquistite: Properties and Occurrences
Holmquistite is a lithium magnesium aluminum inosilicate mineral with chemical formula: Li2(Mg, Fe2+)3Al2Si8O22(OH)2. It is a mineral consisting of an alkali and a silicate of…
Hollandite: Properties and Occurrences
Hollandite (chemical formula: [Ba(Mn64+Mn23+)O16] is an oxide mineral. It is the barium-manganese (III) endmember of the coronadite group. It is a monoclinic-prismatic white mineral containing…
Hoelite: Properties and Occurrences
Hoelite is a very rare organic mineral discovered in 1922 at Mt. Pyramide, Spitsbergen, Norway. Its chemical formula is C14H8O2 (9,10-anthraquinone). It is a monoclinic-prismatic…
Hodgkinsonite: Properties and Occurrences
Hodgkinsonite is a rare zinc manganese silicate mineral Zn2MnSiO4(OH)2. It is a rare monoclinic zinc manganese silicate mineral, having a pink, red, or yellow-red color.…
Hisingerite
Hisingerite is an iron(III) phyllosilicate mineral with formula Fe23+ Si2O5(OH)4·2H2O. It is a mineral perhaps consisting of a black amorphous iron ore that is a…
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